Flame detector

Details Flame detector Flame detector

1976-10-26

1977-07-19

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Flame light source

250227, 350 96R, G01N 2158

Patent

active

040371131

ABSTRACT:
A flame detector device for use with boiler systems has been devised wherein a radiation sensitive means responds when energized by incident radiation of the selective frequency bandwidth to produce a signal indicative of the existence of a flame. A light pipe means includes a lens system for collecting incident radiation in a selected combustion zone of the flame and a flexible tube couples the radiation sensitive means and the lens system. A fiber optics bundle conveys the collected incident radiation from the lens system to the detector and is of an extruded high purity unclad quartz material thereof.

REFERENCES:
patent: 2975785 (1961-03-01), Sheldon
patent: 3216477 (1965-11-01), Devine
patent: 3692415 (1972-09-01), Shiller

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